/Engine/Source/Runtime/OpenGLDrv/Public/OpenGLDrv.h
virtual FTexture2DRHIRef AsyncReallocateTexture2D_RenderThread ( class [FRHICommandListImmediate](API\Runtime\RHI\FRHICommandListImmediate) & RHICmdList, FRHITexture2D * Texture2D, int32 NewMipCount, int32 NewSizeX, int32 NewSizeY, [FThreadSafeCounter](API\Runtime\Core\HAL\FThreadSafeCounter) * RequestStatus )